You can find maps of these in 1861 for comparison here.
In the meantime, if you want information on a surname that hasn’t appeared in my book or been a subject of a previous blog do let me know.
Maps for the surnames Andrewartha and Hunkin
Cornwall: history, surnames and society, from Bernard Deacon
Cornish studies resources 
Love your posts – did you do Polglase? – I searched your blog. There’s quite a few polglase farms etc – we were breague before falmouth but can’t go back very far beyond a bailiff at pendennis castle (bailiff sounds dodgy! ! mamy thanks
Patrick Polglase 07979508225
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It’s in the book, Patrick, but i’ve added it to the list for another map.
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